Adsorption of arsenic in aquifers of the Red River floodplain controlled by Fe-oxides

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Abstract

Adsorption of As(III) to aquifer sediments from the Red River floodplain, Vietnam, has been investigated. The adsorption affinity differs between the sediments indicating that it is not related to bulk components of the sediment but rather that certain properties of the sediments are important for the adsorption. Normalized to the pool of Fe-oxides in the sediments the adsorption isotherms are almost alike, indicating that Fe-oxides are the main absorbents for As(III) in these three sediments. This has implications for the mobility of As(III) in the groundwater aquifers, as it can vary spatially and also over time, if the Fe-oxides in the sediment become reduced.

Original languageEnglish
Title of host publicationArsenic Research and Global Sustainability
Subtitle of host publicationProceedings of the 6th International Congress on Arsenic in the Environment, AS 2016
EditorsProsun Bhattacharya, Marie Vahter, Jerker Jarsjö, Jurate Kumpiene, Arslan Ahmad, Charlotte Sparrenbom, Marinus Eric Donselaar, Jochen Bundschuh, Ravi Naidu
Place of PublicationLeiden
PublisherCRC Press/Balkema
Pages151-152
Number of pages2
ISBN (Print)978-1-138-02941-5
Publication statusPublished - 2016
Event6th International Congress on Arsenic in the Environment - Stockholm, Sweden
Duration: 19 Jun 201623 Jun 2016
Conference number: 6

Conference

Conference6th International Congress on Arsenic in the Environment
Abbreviated titleAS 2016
Country/TerritorySweden
CityStockholm
Period19/06/1623/06/16

Programme Area

  • Programme Area 2: Water Resources

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